Medium Duty

The Spirolox medium duty series offers economy in price, space requirements and weight in medium thrust applications. These spiral retaining rings are rated to handle approximately twice the thrust capacity of the light duty series and 2/3 the amount of thrust load of heavy duty Spirolox and basic internal/external die-formed retaining rings will take. They range in size from 1/2” to 11 shaft and bore diameters.

RR – Internal

This series offers economy in price, space requirements and weight in medium thrust applications. The RR Series rings are covered by Mil Spec, Mil-R-27426 and Aerospace Standard AS3217 & AS4299. They will comply with these specs when specified on purchase order or drawing.

Size Range: .500 – 11.0 inches

RS – External

This series offers economy in price, space requirements and weight in medium thrust applications. The RS Series rings are covered by Mil Spec, Mil-R-27426 and Aerospace Standard AS3218 & AS4299. They will comply with these specs when specified on purchase order or drawing.

Size Range: .500 – 11.0 inches